spi: rockchip: Signal unfinished DMA transfers

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When using DMA, the transfer_one callback should return 1 because the
transfer hasn't finished yet.

A previous commit changed the function to return 0 when the DMA channels
were correctly prepared.

This manifested in Veyron boards with this message:

[ 1.983605] cros-ec-spi spi0.0: EC failed to respond in time

Fixes: ea98491133 ("spi: rockchip: check return value of dmaengine_prep_slave_sg")
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

...

This commit is contained in:

Tomeu Vizoso 2016-06-08 09:32:51 +02:00 • committed by Mark Brown

parent 1a695a905c

commit 4dc0dd8360

1 changed files with 3 additions and 1 deletions

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drivers/spi/spi-rockchip.c

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